Advancing UK Aerospace, Defence, Security & Space Solutions Worldwide
  • Home
  • /
  • Defence
  • /
  • Sonardyne International appoints Graham Brown as Managing Director

Defence Security

Sonardyne International appoints Graham Brown as Managing Director

Marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.

Above: Leading marine technology provider Sonardyne International Ltd. has announced Graham Brown as its new Managing Director.
Courtesy Sonardyne International

Graham, who takes over the role from John Ramsden on 1st April, has served on Sonardyne International’s board from 2008, most recently as Sales and Marketing Director and Deputy Managing Director.

Advertisement
PTC rectangle

John, who has been Sonardyne International’s Managing Director since 2009, is staying within the Sonardyne family, taking the role of CEO of Sonardyne Group, the newly formed parent company of Sonardyne International and its sister companies; Chelsea Technologies, EIVA, Wavefront and 2G Robotics.

“This is an exciting time for Sonardyne International,” says Graham. “Looking beyond the current, uniquely challenging business climate, we’ll continue to grow organically, in terms of our people, our technology offering and the global markets which we support - while upholding the service and support that we’re renowned for. But we’re now part of a wider group of companies, with access to a considerably enlarged portfolio of products and services that complement our own seabed-to-shore systems. We expect this to deliver significant operational benefits for our customers across the global energy, ocean science, civil and defence markets.”

“Next year will be Sonardyne’s 50th year in business and I’m proud to have played a significant role in the success of the company over the last two decades,” says John. “As we look forward to celebrating that half century milestone with Graham at the helm, our collective sights are focussed on the direction we’re headed in at the start of our second half century. As CEO of Sonardyne Group, I’m excited at the prospect of working with Graham and his counterparts across our business to support those who measure, navigate, communicate or explore the world’s waters and oceans, safely, responsibly and more efficiently than ever before.”

Advertisement
Security & Policing Rectangle

Graham is an Electromechanical Engineer by background with a first-class degree and Ph.D. He is also a Chartered Engineer, a Fellow of the Institute of Directors (IoD), a Fellow of the Institute of Marine Engineering Science and Technology (IMarEST), and a member of the Society for Underwater Technology (SUT). He contributes to a number of industry groups such as the Southern Region Council of the Energy Industries Council (EIC).

 

Advertisement
Security & Policing 2026
HRH The Princess Royal tours MTL Advanced in Rotherham

Aerospace Defence Events

HRH The Princess Royal tours MTL Advanced in Rotherham

10 March 2026

HRH The Princess Royal visited Rotherham based MTL Advanced (part of WEC Group) on Friday 20th February to meet apprentices, engineers and senior leadership, gaining an insight into the company’s continued investment in skills development, innovation and regional growth and learning about its new Advanced Manufacturing Centre (AMC).

ALL.SPACE and Viasat advance Ka-band connectivity

Defence Security Space

ALL.SPACE and Viasat advance Ka-band connectivity

10 March 2026

ALL.SPACE today announced a strategic collaboration with Viasat and the successful certification of the ALL.SPACE Hydra terminal to operate on the Viasat Global Xpress (GX) network, which provides integrated military Ka-band spectrum access for government and defence missions.

IFS completes acquisition of Softeon

Aerospace Defence Security Space

IFS completes acquisition of Softeon

10 March 2026

IFS today announced the completion of its acquisition of Softeon, providing enterprises across manufacturing, logistics and retail, with access to a new category of supply chain technology.

Babcock to support British Army

Defence

Babcock to support British Army's FEPS

9 March 2026

Babcock International Group has been awarded a contract to provide the British Army with in-service support for its Field Electrical Power Supplies (FEPS) power generators.

Advertisement
ODU RT
BAE Systems OneArc selected by Danish Army

Defence

BAE Systems OneArc selected by Danish Army

9 March 2026

BAE Systems OneArc has announced that it has been selected by the Danish Army as the foundation for its next-generation enterprise virtual training environment.

Isembard raises $50m to open 25 AI-powered factories

Aerospace Defence

Isembard raises $50m to open 25 AI-powered factories

9 March 2026

UK manufacturing startup Isembard - which manufactures components for aerospace, defence and robotics in factories powered by its proprietary agentic AI platform MasonOS - today announced it has closed $50 million in Series A funding, less than 12 months after its Seed round.

Advertisement
ODU RT
Advertisement
Gulfstream banner